An assembly fixture for isolating valve blades

Abstract

The invention discloses an assembling clamp of an isolating valve vane. The assembling clamp comprises a bottom plate, wherein a straight guide rail is mounted on the bottom plate; a pair of sliding seats is arranged on the guide rail; a shaft rod is arranged on each sliding seat; the axes of the two shaft rods are located in the same straight line; a pair of rotating arms which rotates around the shaft rod is mounted on each shaft rod; a positioning hole is formed in the other end, far away from the shaft rod, of each rotating arm; the distances between the central lines of the positioning holes of the rotating arms and the axes of the shaft rods are identical; limit pieces which limit the central lines of the positioning holes of the rotating arms at the same horizontal height are arranged on the sliding seats or the bottom plate; a pre-compression spring is arranged between each pair of rotating arms; radial through holes are formed in the shaft rods; a guide shaft penetrates through the through holes of the two shaft rods. After the assembling clamp of the isolating valve vane is adopted for assembling the isolating valve vane, rotating shafts of shaft lugs penetrate through the positioning holes, since the central lines of the four positioning holes are located at the same straight line, the four rotating shafts are coaxial, the mounting positions of the shaft lugs can be rapidly and precisely positioned through adjusting the positions of the sliding seats, the operation is simple, and the work efficiency is high.

Description

technical field [0001] The invention relates to process equipment, in particular to an assembly fixture for isolating valve blades Background technique [0002] Isolation valves are commonly used in ventilation and air conditioning systems of nuclear power plants. The isolation valves are opened and closed by opening and closing the blades in the valve body; the blades of the isolation valves are as follows: figure 1 As shown, two pairs of shaft lugs 2' are installed on the blade 1', each shaft lug 2' is equipped with a rotating shaft 3', and the rotating shaft 3' is connected with the driving mechanism; in order to ensure that the overall operation of the blade 1' is balanced and synchronized, the sealing of the isolation valve Good, the axes of the four rotating shafts on the blade are required to be on the same straight line. [0003] At present, the assembly method of the lugs on the blades is generally determined by manually drawing a line with a ruler to determine the...

AI Technical Summary

Problems solved by technology

[0003] At present, the assembly method of the lugs on the blades is generally determined by manually drawing a line with a ruler to determine the installation position of the lugs, and then manually aligning the lugs with the drawn lines and welding them on the blades one by one, and finally installing the rotating shaft on the lugs. The working efficiency of this method is low, time-consuming and labor-intensive, especially there is a large deviation in aligning the rotating shaft with the drawing line by hand, and it is difficult to ensure that the four rotating shafts of the blade are coaxial

Images